Add the mini_installer_syzygy GN target.

chrome/tools/build/win/syzygy/BUILD.gn

Index: chrome/tools/build/win/syzygy/BUILD.gn
diff --git a/chrome/tools/build/win/syzygy/BUILD.gn b/chrome/tools/build/win/syzygy/BUILD.gn
index c73f94944a65b72f6a4b5d4eb021110f841c0cec..822a645f3e48861f54f23cc2bb265db4978cd0d7 100644
--- a/chrome/tools/build/win/syzygy/BUILD.gn
+++ b/chrome/tools/build/win/syzygy/BUILD.gn
@@ -6,13 +6,6 @@ import("//build/config/chrome_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 
-declare_args() {
-  # Generate Syzygy optimized binaries. Syzygy optimize mode is a profile
-  # guided optimization that reorders code for better locality.
-  syzygy_optimize =
-      is_win && is_official_build && !is_clang && symbol_level == 2
-}
-
 assert(!syzygy_optimize || !is_syzyasan,
        "Don't do both syzygy_optimize and is_syzyasan")
 
@@ -29,6 +22,9 @@ if (syzygy_optimize) {
   #
   #   deps (required)
   #     Normal meaning.
+  #
+  #   data_deps
+  #     Normal meaning.
   template("syzygy_optimize") {
     action(target_name) {
       if (defined(invoker.visibility)) {
@@ -59,9 +55,12 @@ if (syzygy_optimize) {
         rebase_path(syzygy_dest_dir, root_build_dir),
       ]
 
-      if (defined(invoker.deps)) {
-        deps = invoker.deps
-      }
+      forward_variables_from(invoker,
+                             [
+                               "deps",
+                               "data_deps",
+                               "public_deps",
+                             ])
     }
   }
 
@@ -70,6 +69,11 @@ if (syzygy_optimize) {
     deps = [
       "//chrome:main_dll",
     ]
+    if (is_multi_dll_chrome) {
+      data_deps = [
+        ":chrome_child_dll_syzygy",
+      ]
+    }
   }
   if (is_multi_dll_chrome) {
     # Also instrument chrome_child.dll.
@@ -83,13 +87,23 @@ if (syzygy_optimize) {
 } else if (is_syzyasan) {
   # Instruments a binary with SyzyAsan.
   #
-  #   dll_name (required)
-  #     Name of the DLL to be instrumented, with no extension or path. This
-  #     ${dll_name}.dll is assumed to be in the output directory and must be
+  #   binary_name (required)
+  #     Name of the binary to be instrumented, with no extension or path. This
+  #     binary_name is assumed to be in the output directory and must be
   #     generated by a dependency of this target.
   #
+  #   dest_dir (required)
+  #     The destination directory where the instrumented image should be
+  #     written.
+  #
   #   deps (required)
   #     Normal meaning.
+  #
+  #   public_deps
+  #     Normal meaning.
+  #
+  #   data_deps
+  #     Normal meaning.
   template("syzygy_asan") {
     action(target_name) {
       if (defined(invoker.visibility)) {
@@ -99,22 +113,23 @@ if (syzygy_optimize) {
 
       filter = "syzyasan-instrumentation-filter.txt"
 
-      dll_name = invoker.dll_name
-      input_dll = "$root_out_dir/$dll_name.dll"
-      input_pdb = "$root_out_dir/$dll_name.dll.pdb"
+      binary_name = invoker.binary_name
+      dest_dir = invoker.dest_dir
+      input_image = "$root_out_dir/$binary_name"
+      input_pdb = "$root_out_dir/$binary_name.pdb"
 
       inputs = [
         filter,
-        input_dll,
+        input_image,
 
         #input_pdb,
       ]
 
-      output_filter = "$syzygy_dest_dir/win-syzyasan-filter-$dll_name.txt.json"
+      output_filter = "$dest_dir/win-syzyasan-filter-$binary_name.txt.json"
 
       outputs = [
-        "$syzygy_dest_dir/$dll_name.dll",
-        "$syzygy_dest_dir/$dll_name.dll.pdb",
+        "$dest_dir/$input_image",
+        "$dest_dir/$input_image.pdb",
         output_filter,
       ]
 
@@ -122,7 +137,7 @@ if (syzygy_optimize) {
         "--mode",
         "asan",
         "--input_executable",
-        rebase_path(input_dll, root_build_dir),
+        rebase_path(input_image, root_build_dir),
         "--input_symbol",
         rebase_path(input_pdb, root_build_dir),
         "--filter",
@@ -130,7 +145,7 @@ if (syzygy_optimize) {
         "--output-filter-file",
         rebase_path(output_filter, root_build_dir),
         "--destination_dir",
-        rebase_path(syzygy_dest_dir, root_build_dir),
+        rebase_path(dest_dir, root_build_dir),
       ]
 
       deps = [
@@ -139,14 +154,17 @@ if (syzygy_optimize) {
       if (defined(invoker.deps)) {
         deps += invoker.deps
       }
-      if (defined(invoker.public_deps)) {
-        public_deps = invoker.public_deps
-      }
+      forward_variables_from(invoker,
+                             [
+                               "data_deps",
+                               "public_deps",
+                             ])
     }
   }
 
   syzygy_asan("chrome_dll_syzygy") {
-    dll_name = "chrome"
+    binary_name = "chrome.dll"
+    dest_dir = syzygy_dest_dir
     deps = [
       "//chrome:main_dll",
     ]
@@ -160,7 +178,7 @@ if (syzygy_optimize) {
     # uninstrumented. Otherwise, chrome_child is also instrumented to the
     # normal place.
     syzygy_asan("chrome_child_dll_syzygy") {
-      dll_name = "chrome_child"
+      binary_name = "chrome_child.dll"
       deps = [
         "//chrome:chrome_child",
       ]
@@ -171,6 +189,10 @@ if (syzygy_optimize) {
       } else {
         dest_dir = syzygy_dest_dir
       }
+
+      data_deps = [
+        ":chrome_child_dll_syzygy",
+      ]
     }
 
     if (is_official_build) {
@@ -182,7 +204,7 @@ if (syzygy_optimize) {
           "$root_out_dir/chrome_child.dll.pdb",
         ]
         outputs = [
-          "$syzygy_dest_dir/{{source_file_part}}",
+          "$dest_dir/{{source_file_part}}",
         ]
         deps = [
           "//chrome:chrome_child",